CVO 5/8/2012Oxygen Sensor
1993 Chevrolet Caprice 5.0L TBI OHV 8cyl
The Oxygen Sensor is located:
Under hood, driver side, lower engine area, mounted in exhaust manifold.
Hydrocarbons ( HC ), gasoline is essentially 100% of HC.
Malfunctions affecting HC are ignition misfire or air / fuel mixture too lean. Check the throttle body injector.